Sample study on Avian diversity of Chupi Oxbow Lake, Purbasthali, Purba Bardhaman, West Bengal

The Nature Mates Nature Club has released a dataset entitled "Sample study on Avian diversity of Chupi Oxbow Lake, Purbasthali, Purba Bardhaman, West Bengal" 

The Purbasthali, also known as Chupir Char or beel locally, covers 2.19 km of water and stretches from 23°25′54′′ to 23°27′54′′N and 88°19′45′′ to 88°21′54′′E. (Mandal et al. 2018). In West Bengal’s lower Gangetic delta, the wetland is situated between the districts of Nadia and Purba Barddhaman (Mandal & Siddique, 2018). Due to its link with the river at its southern end across a narrow strait, this water body has a distinctive combination of lacustrine (lentic) and riverine (lotic) habitats (Ganesan & Khan 2007). The lake’s crescent-shaped shape was created between 1989 and 1991 as a result of the lateral displacement of the river stream and concurrent erosion and deposition processes (Mandal & Siddique, 2018).

According to the Ramsar classification, the wetland of Purbasthali (Chupir Char), which is physiographically an oxbow lake, is designated as a marsh (jheel) of Gangetic Alluvial Plains (Mandal & Siddique 2018). The habitat of an oxbow lake is typically Adjacent to a river and favorable for the establishment of numerous species of fauna and plants (Ward et al. 1999; Stella et al. 2011). This lake is connected to the River Bhagirathi by a little waterway. As usual, this oxbow lake offers a good habitat for various water bird species.

The lake is currently threatened by habitat loss due to the overgrowing of Water Hyacinth.

Large numbers of birds in and around Chupi Lake were studied. This dataset includes all the water birds recorded on the 21st of January 2024.

All the birds are identified up to the species level. 32 species of birds belonging to 10 orders and 15 families were recorded from this oxbow lake.

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